JPS63233301A - Variable inductance converter - Google Patents
Variable inductance converterInfo
- Publication number
- JPS63233301A JPS63233301A JP63049465A JP4946588A JPS63233301A JP S63233301 A JPS63233301 A JP S63233301A JP 63049465 A JP63049465 A JP 63049465A JP 4946588 A JP4946588 A JP 4946588A JP S63233301 A JPS63233301 A JP S63233301A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- cylindrical member
- cylindrical
- variable inductance
- transducer according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims description 34
- 239000004020 conductor Substances 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/02—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for altering or correcting the law of variation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
- G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
・産業上の利用分野及び従来の技術
・ 本発明は細長い円筒形巻型上に巻回された巻線と、
導電性材料よりなり巻線を囲むように設けられ巻線に対
して軸方向に動かせる筒状部材とよりなる可変インダク
タンス変換器に関する。DETAILED DESCRIPTION OF THE INVENTION - Industrial application field and prior art - The present invention comprises a winding wire wound on an elongated cylindrical winding former;
The present invention relates to a variable inductance converter comprising a cylindrical member made of a conductive material, surrounding a winding, and movable in the axial direction with respect to the winding.
かかる変換器では筒状部材が巻型及び巻線に対し軸方向
に変位すると巻線のインダクタスが変化する−そこで、
巻線を例えば発振器の同調回路の一部として使用すると
発振周期数が筒状部材の変位と共に変化する。従って、
発振器の周波数変化を検出することにより筒状部材の動
きをあられす信号を得ることができる。In such a transducer, when the cylindrical member is axially displaced relative to the former and the winding, the inductance of the winding changes - so:
When the winding is used, for example, as part of a tuned circuit of an oscillator, the number of oscillation cycles changes with the displacement of the cylindrical member. Therefore,
By detecting the frequency change of the oscillator, a signal indicating the movement of the cylindrical member can be obtained.
発明が解決しようとする画題点
かかる変換器における大きな問題は筒状部材が屑定量動
いた場合に生じるインダクタンスの変化」が部材の位置
により実質的に変化してしまうことで、このため実際の
使用に際しては筒状部材の変位域を制限しなければなら
なくなる。本発明は本町細書冒頭に記載の変ｉ！ｋＷＡ
の改良により上記問照点を解決することを目的とする。Problem to be Solved by the Invention A major problem with such a converter is that the change in inductance that occurs when the cylindrical member moves by a certain amount of debris changes substantially depending on the position of the member, which makes it difficult to use in actual use. In this case, the displacement range of the cylindrical member must be limited. The present invention is based on the changes described at the beginning of the Honcho Specifications! kWA
The purpose of this study is to solve the above-mentioned questions by improving the .
問題点を解決するための手段
本発明は前記の種類の変換器の筒状部材にその長手方向
に沿って間隔を隔てて開口部を形成することにより上記
目的を達成する。Means for Solving the Problems The present invention achieves the above objects by forming apertures spaced along the length of the tubular member of a transducer of the type described above.
好ましい実施例では同口部は筒状部材上にその長手方向
に沿って所定間隔で開設された穿孔ないし打抜き穴であ
り、そのＩ？５ＩＦａは筒状部材の端に近づくにつれて
短くされる。また、筒状部材の端は部材が動かされても
巻線を囲んだ状態から脱することはない。実論例では筒
状部材はアルミニウムにより形成され約１３０履の長さ
を有する。巻線が形成される範囲もほぼ同程度の長さを
有し、巻線と筒状部材との間の相対通勤行程は約１１０
４ａとされる。In a preferred embodiment, the openings are perforations or punched holes formed at predetermined intervals along the length of the cylindrical member, and the I? 5IFa becomes shorter as it approaches the end of the cylindrical member. Further, the end of the cylindrical member does not come out of the state surrounding the winding even if the member is moved. In the actual example, the tubular member is formed of aluminum and has a length of approximately 130 mm. The range in which the windings are formed also has approximately the same length, and the relative commuting distance between the windings and the cylindrical member is approximately 110 mm.
It is considered to be 4a.
実施例
第１図に示すように、本発明による変換器は円筒形巻型
１０よりなり、その上に巻線１１が巻回される。巻型１
０の周囲には巻線１１を囲んで符号１２で示す筒状部材
が巻線１１を完全に囲んだ状態を基準として軸方向に変
仲自在に設けられる。Embodiment As shown in FIG. 1, the transducer according to the invention consists of a cylindrical former 10 on which a winding 11 is wound. Winding form 1
A cylindrical member designated by reference numeral 12 surrounding the winding 11 is provided around the winding 11 so as to be freely variable in the axial direction with reference to the state in which the winding 11 is completely surrounded.
第２図に示すように、筒状部材１２には同・−寸法の円
形孔１３よりなる開口列が−の孔と隣接する孔との間隔
が部材１２の端に向って小さくなるように形成される。As shown in FIG. 2, the cylindrical member 12 is formed with a row of openings consisting of circular holes 13 of the same dimensions so that the distance between the - hole and the adjacent hole becomes smaller toward the end of the member 12. be done.
筒状部材１２の端は部材１２が肋かされても巻１ｉ１１
１を囲んだ状態から脱することはない。The end of the cylindrical member 12 is wound 1i11 even if the member 12 is ribbed.
It never escapes from the state surrounding 1.
第３図は−の変形例を示す。この例では孔は円形である
もののその寸法は同じではない。第４図は孔の少なくと
も一部のものはスロット状の形状１４に形成してもよい
こ七を示す。FIG. 3 shows a modification of -. Although the holes are circular in this example, their dimensions are not the same. FIG. 4 shows that at least some of the holes may be formed in a slot-like configuration 14.
開口部の寸法及び位置は巻線の寸法及び巻線と筒状部材
との間の相対範囲によって決められる。The size and location of the opening is determined by the dimensions of the winding and the relative extent between the winding and the tubular member.
また、温度補償を行なうため、上記周波数決定に使われ
る巻線と同一温度条件下に置かれる別の巻型上に別の巻
線を巻回し、これら２つの巻線にコンデンサを組合わせ
て発振）器の周波数決定部品に使用してもよい。これら
２つの巻線はコンデンりに順次切換接続され、得られた
発振器出力信号は周波数電圧変換器を含んだ処理回路に
供給される。このようにして、処理回路の出力電圧と筒
状部材のｙＪ＠に対する相対位置とが対応づけられる。In addition, in order to perform temperature compensation, another winding is wound on another winding form that is placed under the same temperature conditions as the winding used for frequency determination, and a capacitor is combined with these two windings to generate oscillation. ) may be used as a frequency determining component of a device. These two windings are sequentially switched to a capacitor and the resulting oscillator output signal is fed to a processing circuit including a frequency to voltage converter. In this way, the output voltage of the processing circuit and the relative position of the cylindrical member with respect to yJ@ are correlated.
コンデンサに巻線を切換接続するには半導体スイッチを
使うのが便利である。It is convenient to use a semiconductor switch to selectively connect the winding to the capacitor.
要約すると、本発明による可変インダクタンス変換器は
円筒形巻型１０上に巻回された巻１１１と、導電性材料
よりなり巻線を囲むように設けられ巻線に対して軸方向
に動かせる筒状部材１２とよりなる。筒状部材１２には
その長手方向に沿って多数の開口部１３が形成され、こ
れにより変換器の応答の直線性が改善される。In summary, the variable inductance converter according to the invention includes a winding 111 wound on a cylindrical winding form 10, and a cylindrical winding made of a conductive material surrounding the winding and movable axially relative to the winding. It consists of member 12. The tubular member 12 is formed with a number of openings 13 along its length, which improves the linearity of the transducer response.
第１図は本発明による変換器の断面図、第２図は第１因
の変換器の一部を示す平面図、第３図及び第４図は別の
実施例を示す第２図と同様な平面図である。
１０・・・巻型、１１・・・巻線、１２・・・筒状部材
、１３・・・開口部、１４・・・スロット。FIG. 1 is a sectional view of a transducer according to the present invention, FIG. 2 is a plan view showing a part of the first factor converter, and FIGS. 3 and 4 are similar to FIG. 2 showing another embodiment. FIG. DESCRIPTION OF SYMBOLS 10... Winding form, 11... Winding wire, 12... Cylindrical member, 13... Opening part, 14... Slot.
Claims (4)
材料よりなり巻線を囲むように設けられた巻線に対して
軸方向に動かせる筒状部材とよりなり、該筒状部材には
長手方向に間隔を隔てて開口部が形成されたことを特徴
とする可変インダクタンス変換器。(1) Consisting of a winding wound on a long and slender cylindrical winding former, and a cylindrical member made of a conductive material that surrounds the winding and is movable in the axial direction, the cylinder 1. A variable inductance converter, characterized in that the shaped member has openings formed at intervals in the longitudinal direction.
短くされ、該筒状部材の端部は筒状部材が動いても巻線
を囲んだ状態から脱することがない構成であることを特
徴とする請求項１記載の変換器。(2) The distance between the openings becomes shorter toward the end of the cylindrical member, and the end of the cylindrical member does not come out of the state surrounding the winding even if the cylindrical member moves. A transducer according to claim 1, characterized in that the transducer is configured as follows.
１又は２記載の変換器。(3) The transducer according to claim 1 or 2, wherein the opening is a circular hole.
有することを特徴とする請求項１記載の変換器。(4) The transducer according to claim 1, wherein at least a portion of the opening has a slot-like shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8704900 | 1987-03-03 | ||
| GB878704900A GB8704900D0 (en) | 1987-03-03 | 1987-03-03 | Transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63233301A true JPS63233301A (en) | 1988-09-29 |
Family
ID=10613218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63049465A Pending JPS63233301A (en) | 1987-03-03 | 1988-03-02 | Variable inductance converter |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4810990A (en) |
| JP (1) | JPS63233301A (en) |
| DE (1) | DE3805667A1 (en) |
| ES (1) | ES2006837A6 (en) |
| FR (1) | FR2611895B1 (en) |
| GB (2) | GB8704900D0 (en) |
| IT (1) | IT8819593A0 (en) |
| SE (1) | SE463837B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6439502A (en) * | 1987-08-05 | 1989-02-09 | Man Design Co | Length measuring instrument |
| DE4029633A1 (en) * | 1989-10-06 | 1991-04-11 | Bosch Gmbh Robert | TRAVEL MEASURING SYSTEM |
| GB2435518B (en) * | 2006-02-28 | 2009-11-18 | Alexy Davison Karenowska | Position sensor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2954538A (en) * | 1956-05-15 | 1960-09-27 | Avco Mfg Corp | Temperature compensated permeabilitytuned inductor |
| US3400352A (en) * | 1962-01-02 | 1968-09-03 | Varian Associates | Encapsulated inductor with external adjustable means for selectively varying the inductance |
| US3471844A (en) * | 1966-07-08 | 1969-10-07 | Joseph F Schugt | Position responsive signal generator |
| IT1108522B (en) * | 1978-12-19 | 1985-12-09 | Sandretto Spa | APPARATUS TO DETECT THE POSITION OF A MOVING BODY COMPARED TO A FIXED SUPPORT BODY |
| WO1987000951A1 (en) * | 1985-07-29 | 1987-02-12 | Antonio Nicholas F D | Inductance systems |
-
1987
- 1987-03-03 GB GB878704900A patent/GB8704900D0/en active Pending
-
1988
- 1988-02-16 GB GB8803575A patent/GB2201788B/en not_active Expired - Lifetime
- 1988-02-18 US US07/161,473 patent/US4810990A/en not_active Expired - Fee Related
- 1988-02-24 DE DE3805667A patent/DE3805667A1/en not_active Withdrawn
- 1988-02-29 IT IT8819593A patent/IT8819593A0/en unknown
- 1988-02-29 SE SE8800694A patent/SE463837B/en not_active IP Right Cessation
- 1988-03-02 JP JP63049465A patent/JPS63233301A/en active Pending
- 1988-03-02 ES ES8800623A patent/ES2006837A6/en not_active Expired
- 1988-03-02 FR FR888803076A patent/FR2611895B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| SE8800694D0 (en) | 1988-02-29 |
| DE3805667A1 (en) | 1988-09-15 |
| GB8704900D0 (en) | 1987-04-08 |
| ES2006837A6 (en) | 1989-05-16 |
| IT8819593A0 (en) | 1988-02-29 |
| SE463837B (en) | 1991-01-28 |
| GB8803575D0 (en) | 1988-03-16 |
| SE8800694L (en) | 1988-09-04 |
| FR2611895B1 (en) | 1991-08-23 |
| FR2611895A1 (en) | 1988-09-09 |
| US4810990A (en) | 1989-03-07 |
| GB2201788A (en) | 1988-09-07 |
| GB2201788B (en) | 1990-10-10 |
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